MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics reveal it functions as a link farm, with many URLs pointing to compromised WordPress sites and other disposable hosting, suggesting a phishing or malware distribution scheme. The presence of numerous external URIs and the PDF_SEO_DISPOSABLE_LINK_FARM heuristic strongly support this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL http://5m-tti.com/uploads/image/files/22900928387.pdf
- https://majorsagilekvaros.hu/uploads/file/69708413558.pdf
- http://bascobrunswick.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160a3e0609e7b2---387944250.pdf
- https://smoothnomad.com/wp-content/plugins/super-forms/uploads/php/files/4ibeoq04tjp19spahfbljcvv1o/82945184775.pdf
- https://sg-design.top/wp-content/plugins/super-forms/uploads/php/files/72c50c3b09b2c17d114d0c1e0499b64e/gigamejelofenale.pdf
- https://www.gasserbush.com/wp-content/plugins/super-forms/uploads/php/files/831ea335e6547cfef5fd524f849fbffe/51215469404.pdf
- https://used-machinetools.ro/app/webroot/files/userfiles/files/52924793142.pdf
- https://greenturtleproductions.com.au/wp-content/plugins/super-forms/uploads/php/files/a076ceabb90afa22a29d216fb2b04e08/pujixofilinudugil.pdf
- http://adamlegal.com/userfiles/file/362394020.pdf
- http://shinies.ru/img/lib/file/55727741421.pdf
- http://altaprecision.com/userfiles/file/98927539027.pdf
- http://alhouti.com/userfiles/file/71359924710.pdf
- http://www.mywil.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160927ce5dc235---nupopubinasone.pdf
- https://www.clubmanizales.com.co/wp-content/plugins/formcraft/file-upload/server/content/files/160946ebaad811---97998716774.pdf
- http://ned.ru/uploads/files/deborozagomesafuzasig.pdf
- http://rilta.net/userfiles/files/45947355693.pdf
- http://uyaviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160707e0d94519---11901451250.pdf
- http://digimaap.com/wp-content/plugins/super-forms/uploads/php/files/jndtgd630gntiot7aumpn989si/setuko.pdf
- http://sirmamedia.com/ckfinder/userfiles/files/92472559964.pdf
- http://basaritarim.net/admin/editor_resim/file/nenavenekexuve.pdf
- https://nnt52.ru/userfiles/file/91329120663.pdf
- http://www.recetasyconsejos.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8be02649dc---kazujapiwu.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=simile+for+kids
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000eafa.binec04e033e8ef37174083f225d66a7eb2e11067d02d47be2e763a20e8effca230 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEAFA | 17412 bytes |
font_01_sfnt_off000117f2.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x117F2 | 16792 bytes |
font_02_sfnt_off00013009.bin276001b3d56ed9d4f5c25ce09bc2ef98863591dc7a220fc80b7c98ce4c36671f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13009 | 10316 bytes |
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